摘要
利用青海省湟中县2009年森林资源规划设计调查数据中的林地小班7 925个,选取土层厚度、土壤类型、坡度、坡向、坡位等5项因子作为林地质量等级评定划分的主要因子,采用层次分析法,将湟中县现有林地划分成4个等级.Ⅰ、Ⅱ、Ⅲ、Ⅳ等级的林地面积分别为9 069.9 hm2、277 221.5 hm2、81 778.4 hm2和16 576.0 hm2,分别占林地总面积的6.7%、20.2%、60.7%和12.4%.对各级林地的特点和分布作了说明,并给出了各级林地的保护、利用和管理措施.
Taking 7925 forestland sub compartments from data of the forest resources survey on planning and design of Qinghai Province in 2009, and using analytic hierarchy process method, the soil thickness, soil type, slope, aspect and slope position were chosen as the main 5 factors of classification of forestland quality grade, the forestland were divided into I , lI ,III , IV levels . Respectively, forestland area are 9069.9 hm2 , 277221.5 hm2 , 81778.4 hm2 , 16576.0 hm2, accounts for 6.7% , 20.2% , 60.7% , 12.4% of the total forestland. Characteristics and distribution of all levels were described and protection, utilization and management measures were proposed.
出处
《林业调查规划》
2011年第6期32-34,38,共4页
Forest Inventory and Planning
关键词
林地质量
等级分划
层次分析法
湟中县
forestland quality
grade classification
AHP
Huangzhong County
